Overview

overview

10

Static

static

1

emu8086-mi...-1.exe

windows10-1703-x64

4

emu8086-mi...-1.exe

windows10-2004-x64

10

emu8086-mi...-1.exe

windows11-21h2-x64

4

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General

  • Target

    emu8086-microprocessor-emulator-4.08rt-installer_ejRAM-1.exe

  • Size

    1.7MB

  • Sample

    240521-y1r5saha82

  • MD5

    a7e9bcb45b7523010204e2815421b4c8

  • SHA1

    701553001099c27d3ea47962ee84dc1cf02665a5

  • SHA256

    ba098c70ca4970d298b29216ed75e22814299862397f2b09e93a88a66f9ca097

  • SHA512

    34ee95b6ffc713d3dd4df48032155bc74d77dfdde7dd18aff0e60acbbb91d09c9bc3d51b1e7ec198289f422a5aae4a707fb77b8a2b0780426a61a556b251e639

  • SSDEEP

    24576:G7FUDowAyrTVE3U5F/sOW7YzdAKiA1zrhMrTItgZ0HezEVNOBCcgmPw1CjM:GBuZrEU/WUzdUGzOr+izmNOccX4b

Score
10/10
cobaltstrikebackdoordiscoveryevasionpersistencespywarestealertrojan

Malware Config

Targets

    • Target

      emu8086-microprocessor-emulator-4.08rt-installer_ejRAM-1.exe

    • Size

      1.7MB

    • MD5

      a7e9bcb45b7523010204e2815421b4c8

    • SHA1

      701553001099c27d3ea47962ee84dc1cf02665a5

    • SHA256

      ba098c70ca4970d298b29216ed75e22814299862397f2b09e93a88a66f9ca097

    • SHA512

      34ee95b6ffc713d3dd4df48032155bc74d77dfdde7dd18aff0e60acbbb91d09c9bc3d51b1e7ec198289f422a5aae4a707fb77b8a2b0780426a61a556b251e639

    • SSDEEP

      24576:G7FUDowAyrTVE3U5F/sOW7YzdAKiA1zrhMrTItgZ0HezEVNOBCcgmPw1CjM:GBuZrEU/WUzdUGzOr+izmNOccX4b

    Score
    10/10
    cobaltstrikebackdoordiscoveryevasionpersistencespywarestealertrojan

    • Cobalt Strike reflective loader

      Detects the reflective loader used by Cobalt Strike.

    • Cobaltstrike

      Detected malicious payload which is part of Cobaltstrike.

      trojanbackdoorcobaltstrike

    • Drops file in Drivers directory

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan

    • Downloads MZ/PE file

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Modifies powershell logging option

      evasion

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops file in System32 directory

    behavioral1behavioral2behavioral3

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

3
T1112

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

8
T1012

System Information Discovery

8
T1082

Peripheral Device Discovery

2
T1120

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks